Vince Gonzales goes undercover to uncover airport security loopholes. Richard Roth reports the top Pakistani kidnap suspect has been wanted by the U.S. for a long time. Elizabeth Palmer reports Afghan leader Hamid Karzai is walking a dangerous tightrope. Mark Strassman reports on a lawsuit accusing a power company of tolerating racism in the workplace. Medical advances allow doctors to perform surgery on unborn babies, reports Elizabeth Kaledin. Jerry Bowen reports on an arrest and new evidence in the case of a missing San Diego girl.